A gum block film lamination heat sealing apparatus

Abstract

The application discloses a rubber block film covering and heat sealing equipment and relates to the technical field of film covering equipment.The rubber block film covering and heat sealing equipment comprises a rack, two groups of unwinding devices which are arranged on the rack in an up-down distribution mode and are used for rollingly supporting film rolls, two groups of inertia prevention material feeding devices which are arranged on the rack in an up-down distribution mode and are used for braking the unwinding devices and recycling the excess film released by the film rolls under inertia, a feeding and conveying device which is located between the two groups of unwinding devices and is used for centrally conveying rubber blocks to a film covering station, a film covering conveying device which is located at the film covering station and is used for performing film covering operation on the rubber blocks in the conveying process of the film covering conveying device, and a heat sealing device which is used for performing film heat sealing and film cutting operation on the rubber blocks after film covering.The application has the advantages of reasonable mechanical structure, coherent and reliable operation action, high degree of mechanization, good film heat sealing effect, suitability for popularization to existing automatic production lines, replacement of low-efficiency manual operation, and complete solution to the problems of large rubber block volume and film covering difficulty.

Description

Technical Field

[0001] This invention relates to the field of coating equipment technology, and specifically to a heat-sealing equipment for coating adhesive blocks. Background Technology

[0002] Raw rubber is the main raw material for tire products, generally referring to uncured rubber compounds. Before use, it needs to be plasticized in an internal mixer. Raw rubber is often put into the internal mixer in large blocks, which facilitates transportation and stacking storage.

[0003] Rubber blocks are often packaged in kraft paper bags for convenient transportation, stacking, and storage. However, at room temperature, rubber blocks have high surface friction and viscosity, making it troublesome to directly put bags on them and easy to tear the packaging bags. Furthermore, kraft paper bags are very easy to stick to the rubber blocks. If the kraft paper bags are not completely removed before plasticizing, they will contaminate the ingredients and ultimately affect the quality and performance of the tires.

[0004] Currently, to solve the technical problems associated with directly packaging adhesive blocks into kraft paper bags, manufacturers coat the surface of the adhesive blocks with a low-melting-point film before packaging them into bags. This separates the sticky adhesive blocks from the kraft paper packaging bags, effectively solving the problems that exist when directly packaging adhesive blocks into kraft paper bags.

[0005] However, there is currently no specialized lamination equipment for adhesive block lamination. The operation is mostly done manually or with the help of simple tooling, which results in high labor intensity for workers and low automation.

[0006] Therefore, how to solve the above problems and design a highly automated glue block coating equipment is a technical problem that urgently needs to be solved by those skilled in the art.

[0007] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0008] To address the aforementioned technical problems, embodiments of the present invention provide a heat-sealing device for adhesive block coating, thereby resolving the issues raised in the background section.

[0009] This invention provides the following technical solutions:

[0010] A heat-sealing device for coating adhesive blocks, comprising:

[0011] frame;

[0012] Two sets of unwinding devices are arranged vertically on the frame and are used to roll and support the film roll.

[0013] Two sets of anti-inertia feeding devices are distributed on the frame, one above the other. They are used to brake the unwinding device and recover excess film released by the film roll under inertia.

[0014] The feeding and conveying device, located between the two sets of unwinding devices, is used to center and convey the rubber block to the laminating station;

[0015] The film-coating conveyor is located at the film-coating station, and the adhesive block is coated during the conveying process of the film-coating conveyor.

[0016] The heat sealing device performs film heat sealing and film cutting operations on the coated adhesive block.

[0017] Preferably, the unwinding device includes two rollers, which are connected to the frame at intervals; wherein the two rollers are working positions for the film roll.

[0018] Preferably, the anti-inertia feeding device includes a brake and a rocker arm; wherein,

[0019] The brake component can prevent the roller from rotating, thus preventing the film roll from continuing to feed due to inertia;

[0020] The rocker arm is located in the film roll discharge direction and is used to recover excess film released by the film roll under inertia.

[0021] Preferably, the braking component includes a brake bracket, a brake cylinder, and a push plate; wherein,

[0022] The brake bracket is fixed to the frame;

[0023] The brake cylinder is fixed on the brake bracket and located below the roller;

[0024] The push plate is fixed to the end of the brake cylinder drive rod.

[0025] Preferably, the rocker arm component includes a rocker arm bracket, optical axis I, optical axis II, guide rollers, and a rocker arm; wherein,

[0026] The rocker arm bracket is fixed to the frame and includes two side plates;

[0027] The rocker arm includes two sets, and the two sets of rocker arms are rotatably connected to two side plates by pins;

[0028] The rocker arm includes a long arm and a short arm, which are connected at an angle; the long arm is positioned close to the brake component, and the short arm is positioned away from the brake component.

[0029] The optical axis I is connected to two long arms at both ends;

[0030] The two ends of the optical axis II are connected to two short arms;

[0031] The guide roller is located above the rocker arm and connected to the two side plates.

[0032] Preferably, the feeding and conveying device includes:

[0033] The conveyor support includes two parallel side plate frames;

[0034] Several powered rollers are connected at equal intervals to the two side plate frames;

[0035] The centering assembly includes a guide frame and several rollers;

[0036] The guide frame includes two sets, which are fixed symmetrically above the two side plate frames;

[0037] The guide frame includes an inclined guide plate and a horizontal guide plate connected to each other, with the inclined guide plate located in the feeding direction and the horizontal guide plate located in the discharging direction;

[0038] Several rollers are spaced apart on the guide frame, and each guide frame has two layers of rollers spaced apart.

[0039] The inclined guide plate is tilted outward at its front end; the two horizontal guide plates are set parallel to each other.

[0040] Preferably, the film-coating conveying device includes a driving pulley, a driven pulley, a belt, a frame, multiple support rollers, and a motor; wherein,

[0041] The driving pulley and driven pulley are rotatably connected to the frame;

[0042] The belt is connected to the driving pulley and the driven pulley for transmission.

[0043] The frame is fixed to the machine frame and located between the driving pulley and the driven pulley;

[0044] Multiple support rollers are connected at intervals on the frame, and the upper roller surface of the support rollers is used to support the belt conveyor surface;

[0045] The motor is fixed on the frame, and its main shaft is fixedly connected to the drive pulley.

[0046] Preferably, the heat sealing device includes two sets of side heat sealing devices located on both sides of the film-coating conveying device, and a rear heat sealing device located at the feeding position of the film-coating conveying device;

[0047] The two sets of side heat sealing devices heat seal the films on both sides of the adhesive block, and the rear heat sealing device heat seals and cuts the film at the tail end of the adhesive block.

[0048] Preferably, the side heat sealing device includes a rotary cylinder, a side pressure plate, a side pressure strip, a side heating strip, and a base;

[0049] The base is fixed to the frame and located on one side of the film conveying device;

[0050] The rotary cylinder is fixed to the base;

[0051] The side pressure plate is fixed to the end of the cylinder arm of the rotary cylinder;

[0052] The side pressure strip is fixed to the bottom of the side pressure plate;

[0053] The side heating strip is located on one side of the film-coating conveying device and is fixed to the frame by a mounting bracket;

[0054] The rotary cylinder drives the cylinder arm to rotate, which causes the side pressure bar to press against the side heating bar.

[0055] Preferably, the post-heat sealing device includes a bracket, a cutter on the bracket, a pressing drive located directly above the cutter, and two sets of heat sealing components fixed on the bracket and located on both sides of the cutter.

[0056] Among them, the downward driving component can press down on the heat sealing component and cooperate with the heat sealing component to perform heat sealing operation; the cutting component can pass upward through the gap between the two sets of heat sealing components to perform film cutting operation.

[0057] The bracket includes a vertical side plate and a flat plate fixed to the top of the vertical side plate; through holes are distributed along the length of the flat plate, and two sets of heat seals are provided on the flat plate and located on both sides of the through holes;

[0058] The cutting component includes a cutting cylinder, a cutting base, and a cutting blade;

[0059] The cutting cylinder is fixed on the bracket;

[0060] The cutter holder is fixed to the end of the cutting cylinder drive rod;

[0061] The cutter is fixed on the cutter holder;

[0062] The cutting cylinder can drive the cutter to move up and down through the through hole.

[0063] The pressing drive component includes a pressing cylinder, a pressure plate, and a pressure bar;

[0064] The downward pressure cylinder is vertically positioned above the cutting blade.

[0065] The pressure plate is fixed to the end of the downward pressure cylinder drive rod;

[0066] The pressure strips include two sets, which are symmetrically fixed at the bottom of the pressure plate, and the positions of the two sets of pressure strips correspond to the positions of the two sets of heat sealing components.

[0067] The adhesive block coating heat sealing equipment provided in this invention has the following beneficial effects: The invention has a reasonable mechanical structure, smooth and reliable operation, high degree of mechanization, and good film heat sealing effect. It is suitable for promotion to existing automated production lines, replacing inefficient manual operations and completely solving the problems of large adhesive block volume and difficult coating. Attached Figure Description

[0068] Figure 1 This is a schematic diagram of the structure of the present invention from one angle;

[0069] Figure 2 This is a partial cross-sectional structural diagram of the second angle of the present invention;

[0070] Figure 3 This is a schematic diagram of the structure of the present invention from angle three;

[0071] Figure 4 This is a schematic diagram of the structure from angle four of the present invention;

[0072] Figure 5 This is a schematic diagram of the anti-inertial material feeding device in this invention;

[0073] Figure 6 For the present invention Figure 5 A schematic diagram of the structure after part of the rack has been removed.

[0074] Figure 7 For the present invention Figure 5 A schematic diagram of the structure from the main view after part of the rack has been removed.

[0075] Figure 8 This is a schematic diagram of the feeding and conveying device at angle one in this invention;

[0076] Figure 9 This is a schematic diagram of the structure of the feeding and conveying device at angle two in this invention;

[0077] Figure 10 This is a schematic diagram of the structure of the feeding and conveying device at angle three in this invention;

[0078] Figure 11 This is a schematic diagram of the jet head angle one in this invention;

[0079] Figure 12 This is a schematic diagram of the jet head angle two in this invention;

[0080] Figure 13 For the present invention Figure 11 Cross-sectional view along the CC direction;

[0081] Figure 14 For the present invention Figure 8 A magnified view of part D;

[0082] Figure 15 For the present invention Figure 8 A magnified view of part E in the image;

[0083] Figure 16 This is a schematic diagram of the structure of the post-heat sealing device at angle one in this invention;

[0084] Figure 17 This is a schematic diagram of the structure of the post-heat sealing device at angle two in this invention;

[0085] Figure 18 This is a schematic diagram of the structure of the post-heat sealing device at angle three in this invention;

[0086] Figure 19 For the present invention Figure 18 A magnified view of part of F;

[0087] Figure 20 This is a schematic diagram of the structure of the support and the cutter in this invention;

[0088] Figure 21 This is a diagram illustrating the effect of the heat sealing operation of the post-heat sealing device in this invention.

[0089] Figure 22 This is a schematic diagram of the structure of the film-coating conveying device and the side heat-sealing device at angle one in this invention;

[0090] Figure 23 This is a schematic diagram of the film-coating conveying device and the side heat-sealing device at angle two in this invention;

[0091] Figure 24 For the present invention Figure 22 A magnified view of a portion of G. Detailed Implementation

[0092] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0093] Example 1, see Figures 1-4 ;

[0094] A heat-sealing device for coating adhesive blocks, comprising:

[0095] Frame 100; In this embodiment, the frame 100 is mainly welded from structural components such as pipes and plates. It is not specifically limited here and can be set according to the specific situation.

[0096] Two sets of unwinding devices are arranged vertically on the frame 100, which are used to roll and support the film roll a.

[0097] Two sets of anti-inertia feeding devices 200 are arranged vertically on the frame 100. Each set of anti-inertia feeding devices 200 independently brakes its corresponding set of unwinding devices and recovers the excess film released by the film roll a under inertia.

[0098] The feeding and conveying device 300 is located between the two sets of unwinding devices and is used to center and convey the rubber block to the laminating station.

[0099] The film-coating conveyor 400 is located at the film-coating station, and the adhesive block is subjected to film-coating operation during the conveying process of the film-coating conveyor 400.

[0100] The heat sealing device performs film heat sealing and film cutting operations on the coated adhesive block.

[0101] In this embodiment, the unwinding device includes two rollers 110, which are connected at intervals on the frame 100. The two rollers 110 are working positions for film rolls, used to place and roll to support film rolls a.

[0102] The working method of the adhesive block coating heat sealing equipment provided in this embodiment of the invention is as follows:

[0103] 1. Film roll a is placed on the two rollers 110 of each unwinding device. A section of film is pulled out from the free end of film roll a, and the pulled film is passed through the anti-inertia feeding device 200 and finally falls onto the film coating conveyor 400.

[0104] 2. Using a lifting device, lift the rubber block b and place it on the feeding and conveying device 300. The feeding and conveying device 300 then centers and conveys the rubber block b to the film-coating conveying device 400.

[0105] 3. During the process of conveying the adhesive block b to the film conveying device 400, the film on the upper and lower unwinding devices will adhere to the upper and lower sides of the adhesive block b respectively, and the adhesive block b will advance to the film conveying device 400 with the two sections of film pushing it.

[0106] 4. After the adhesive block b is coated with film, the heat sealing device performs film heat sealing and film cutting operations on the coated adhesive block b. The coated and packaged adhesive block b is then sent to the next station via the coating conveyor 400 to prepare for bagging operations.

[0107] Example 2, see Figures 5-7 ;

[0108] During the heat sealing process, the adhesive block is mainly conveyed forward by the feeding conveyor 300 to the film conveyor 400 for film coating. After the film is applied to the adhesive block, the conveying equipment needs to be stopped briefly to facilitate heat sealing and cutting of the film on the adhesive block.

[0109] During the aforementioned heat sealing operation, when the conveying equipment stops briefly, the film on the film roll has a forward tension inertia, which causes the film roll to continue to be unloaded, resulting in excess film hanging down and affecting the next cycle of adhesive film production.

[0110] It should be noted that the above-mentioned conveying equipment refers to the feeding conveying device 300 and the film conveying device 400 in the glue block coating heat sealing equipment.

[0111] To address the aforementioned technical problems, embodiments of the present invention provide an anti-inertial material feeding device to solve these problems, the technical solution of which is as follows:

[0112] The anti-inertial material slippage device includes:

[0113] Brake 210 can stop roller 110 from rotating; to prevent film roll a from continuing to feed excess material forward;

[0114] The rocker arm 220 is located in the discharge direction of the film roll a and is used to recover the excess film released by the film roll a under inertia.

[0115] In this embodiment, the brake component 210 includes a brake bracket 211, a brake cylinder 212, and a push plate 213; wherein,

[0116] The brake bracket 211 is fixed to the frame 100 by bolts or welding.

[0117] The brake cylinder 212 is fixed on the brake bracket 211 and located below the roller 110; specifically, the brake cylinder 212 is a guide rod cylinder;

[0118] The push plate 213 is fixed to the end of the drive rod of the brake cylinder 212.

[0119] In this embodiment, when the conveying equipment stops briefly, the brake cylinder 212 controls the drive rod to extend, pushing the push plate 213 upward, so that the push plate 213 presses against the bottom of the roller 110, preventing the roller 110 from rolling and avoiding the film roll a from continuing to be fed forward under inertia.

[0120] In this embodiment, a brake band is provided on the upper part of the push plate 213; preferably, the brake band is an asbestos brake band, which contains copper wire, has high frictional resistance, and is sensitive to braking.

[0121] In this embodiment, the rocker arm component 220 includes a rocker arm bracket, optical axis I 223, optical axis II 224, guide roller 225, and rocker arm;

[0122] The rocker arm bracket is fixed to the frame 100 by bolts or welding, and includes two side plates 221; in this embodiment,

[0123] The rocker arm includes two sets, and the two sets of rocker arms are rotatably connected to two side plates 221 by pins; bearings are provided at the connection positions of the pins and side plates 221.

[0124] The rocker arm includes a long arm 226 and a short arm 227. Through the unequal length structure design of the long arm 226 and the short arm 227, the center of gravity of the rocker arm is not on the geometric center of the part.

[0125] The long arm 226 and the short arm 227 are connected at an angle as a single unit; the long arm 226 is positioned close to the brake component 210, and the short arm 227 is positioned away from the brake component 210.

[0126] The optical axis I 223 is connected at both ends to two long arms 226;

[0127] The optical axis II 224 is connected at both ends to two short arms 227;

[0128] The guide roller 225 is located above the rocker arm and connected to the two side plates 221; the guide roller 225 is used to wind the film and stabilize the entire rocker arm assembly.

[0129] In this embodiment, the rocker arm 220 is equipped with a photoelectric sensor 228; the photoelectric sensor 228 can detect in real time whether there is film feedback on the rocker arm 220, and if no film feedback is detected, it will remind you to replace the film roll.

[0130] In this embodiment, the frame 100 has a working plate 120 fixed horizontally to the left of the roller 110. The working plate 120 is a storage position for film rolls a; multiple spare film rolls can be stored in the storage position.

[0131] In this embodiment, a vertically arranged baffle 121 is fixed on the left side of the working plate 120 to prevent the film rolls stored in the storage position from slipping off the left side of the working plate 120.

[0132] The working principle of the anti-inertial material slippage device provided in this embodiment of the invention is as follows:

[0133] 1. During lamination, the free end of the film roll a is pulled out and passed sequentially through the bottom of optical axis I 223, the top of guide roller 225, and the bottom of optical axis II 224; the specific film winding trajectory is as follows: Figure 3 As shown;

[0134] 2. When the adhesive block is conveyed forward, the film of film roll a is adhered to the adhesive block and conveyed forward synchronously with the adhesive block. During the forward lamination process of the adhesive block, the film is kept taut at all times.

[0135] The tension of the membrane causes the rocker arm to rotate clockwise a short distance around point O. That is, the center point A of the long arm 226 moves clockwise upward a distance along the arc L trajectory, and the center point B of the short arm 227 moves clockwise downward a distance along the arc L' trajectory.

[0136] 3. When the conveying equipment stops briefly, the brake cylinder 212 controls the drive rod to extend, pushing the push plate 213 to the bottom of the roller 110, preventing the roller 110 from rolling, ensuring that the film roll a stops rotating, and suppressing excess material from the roll;

[0137] 4. At this time, the rocker arm utilizes its own structural center of gravity to rotate counterclockwise around point O to a balanced state. That is, the center point A of the long arm 226 moves counterclockwise downward along the arc L trajectory, and the center point B of the short arm 227 moves counterclockwise upward along the arc L' trajectory, thereby recovering the excess film roll that was released due to inertia when the roller stopped rotating.

[0138] 5. Perform film heat sealing operation. After the heat sealing operation is completed, the next batch of adhesive blocks will continue to be conveyed forward.

[0139] The anti-inertia feeding device provided in this embodiment of the invention has the following beneficial effects: In this invention, by cooperating with a brake component and a rocker arm component, the brake component can prevent the roller below the film roll from continuing to rotate and promptly suppress the feeding of the film roll; the rocker arm component, by utilizing its eccentric structural center of gravity, can recover the excess film released due to the inertia of the film roll when the roller stops rotating.

[0140] Example 3, see Figures 8-10 ,as well as Figures 11-15 ;

[0141] Generally, the rubber blocks are quite heavy, weighing 50-100kg. Due to their weight, they usually need to be lifted by a crane and placed on the feeding and conveying device. This can cause the rubber blocks to be misplaced on the feeding and conveying device. When the misplaced rubber blocks are sent to the laminating station by the feeding and conveying device, it will affect the laminating effect of the rubber blocks.

[0142] To address the aforementioned technical problems, embodiments of the present invention provide a feeding and conveying device to solve these problems, the technical solution of which is as follows:

[0143] A feeding and conveying device 300 includes:

[0144] The conveying support includes two parallel side plate frames 310; the side plate frames 310 are made of C-shaped steel.

[0145] Several power rollers 311 are connected at equal intervals to two side plate frames 310;

[0146] The centering component ensures that the rubber block is aligned during its conveying process on the power roller; it includes a guide frame 320 and several rollers 330.

[0147] The guide frame 320 includes two sets, and the two sets of guide frames 320 are fixed above the two side plate frames 310 in a mirror-symmetrical manner.

[0148] The guide frame 320 includes an inclined guide plate 321 and a horizontal guide plate 322 connected to each other. The inclined guide plate 321 is located in the feeding direction, and the horizontal guide plate 322 is located in the discharging direction.

[0149] Several rollers 330 are spaced apart on the guide frame 320. Each guide frame 320 has two layers of roller groups, and each roller group includes several rollers 330 spaced apart. The rollers 330 are nylon rollers.

[0150] Figure 10 As shown, the guide frame 320 is fixed above the side plate frame 310 by a vertical rod 350, and the bottom of the vertical rod 350 is fixed to the frame 100;

[0151] The inclined guide plate 321 is inclined outward at its front end; the two horizontal guide plates 322 are arranged parallel to each other.

[0152] It should be noted that the outer side of the front end of the guide rod 321 is relative to the two sets of guide frames 320. The position between the two sets of guide frames 320 is the inner side, and the position outside the two sets of guide frames 320 is the outer side.

[0153] In this embodiment, a plurality of the power rollers 311 are provided with driven gears on the same side, a drive motor 312 is installed at the bottom of the conveying bracket, a drive gear is provided on the main shaft of the drive motor 312, and the drive gear and the driven gear are connected by chain transmission.

[0154] Meanwhile, in this embodiment, each power roller 311 can also be driven individually by a motor, and the choice of driving method depends on the power requirements and actual conditions.

[0155] Preferably, photoelectric sensors are provided on the front and rear sides of the conveying bracket to detect the entry and exit of the rubber block into and out of the feeding and conveying device 300.

[0156] The principle of the feeding and conveying device for aligning and conveying rubber blocks provided in this embodiment of the invention is as follows:

[0157] 1. Figure 8 , Figure 9 As shown, the rubber block b has a cuboid structure. When the rubber block b is lifted and placed on the feeding and conveying device 300 by the lifting equipment, the position and angle of the rubber block b on the feeding and conveying device 300 are not fixed. Therefore, the feeding and conveying device 300 needs to have enough space to place the rubber block at the initial placement position of the rubber block b.

[0158] 2. In this embodiment, the front end of the inclined guide plate 321 is inclined outward, and the two sets of guide frames 320 are mirror symmetrical, so that the two sets of inclined guide plates 321 have an open structure at the front end, which increases the storage space of the feeding and conveying device 300 at the initial placement position of the glue block b, making it easier to place the glue block b.

[0159] 3. At the same time, the two sets of inclined guide plates 321 gradually narrow from the front end to the rear end, and the two sets of inclined guide plates 321 are connected to two sets of horizontal guide plates 322 with fixed parallel widths. During the process of feeding and conveying device 300 driving rubber block b forward, in order to maintain the forward conveying state, rubber block b can only be adjusted for position centering under the rolling guidance of roller 330 to achieve the centering conveying of rubber block b.

[0160] It should be noted that when the adhesive block is delivered to the laminating station by the feeding and conveying device 300, the film generally needs to be flattened in order to maintain the flatness of the film and improve the packaging quality.

[0161] In order to perform the film flattening operation, in this embodiment, a jet nozzle 340 is provided at the tail end of the horizontal guide plate 322. The jet nozzle 340 is connected to an air source through a pipeline. The jet nozzle 340 can blow the film directly in front of it, so that the film can be flatly covered on the surface of the adhesive block.

[0162] Figure 12 , Figure 13 As shown, in this embodiment, the jet head 340 is provided with a nozzle 341, and the nozzle flow channel 341a inside the nozzle 341 is in the shape of a flat fan; the nozzle flow channel is in the shape of a flat fan to ensure that the compressed air is ejected with the maximum fan area and blows the film.

[0163] In this embodiment, the jet head 340 is provided with a quick connector 342 that communicates with the nozzle flow channel 341a, and the quick connector 342 is connected to the air source through a pipeline.

[0164] The feeding and conveying device provided in this embodiment of the invention has the following beneficial effects: Through the coordinated arrangement of various structures, the present invention can realize the centering operation of the glue block during the forward conveying process, and prepare for film coating in advance; an air jet head is set in the conveying direction of the feeding and conveying device, which can blow the film directly in front, so that the film can be smoothly covered on the surface of the glue block.

[0165] Example 4, see Figures 22-24 ;

[0166] In this embodiment, the film-coating conveying device 400 includes a driving pulley 410, a driven pulley 420, a belt 430, a frame 440, multiple support rollers 450, and a motor 460; wherein,

[0167] The driving pulley 410 and the driven pulley 420 are rotatably connected to the frame 100;

[0168] The belt 430 is connected to the driving pulley 410 and the driven pulley 420 for transmission.

[0169] The frame 440 is fixed on the frame 100 and located between the driving pulley 410 and the driven pulley 420;

[0170] Multiple support rollers 450 are spaced apart and connected to the frame 440; the upper roller surface of the support roller 450 is used to support the conveying surface of the belt 430, which can ensure that the belt 430 remains flat when conveying the rubber block b.

[0171] The motor 460 is fixed on the frame 100, and its main shaft is directly or via a chain to the drive pulley 410.

[0172] In this embodiment, a mechanical limit switch is installed on the frame 100 below the belt 430 to control the rubber block b to stay correctly at the designated heat-sealing position.

[0173] Example 5, see Figures 1-4 ;

[0174] The heat sealing device includes two sets of side heat sealing devices 500 located on both sides of the film conveying device 400, and a rear heat sealing device 600 located at the feeding position of the film conveying device 400.

[0175] The two sets of side heat sealing devices 500 respectively heat seal the films on both sides of the adhesive block, and the rear heat sealing device 600 heat seals and cuts the film at the tail end of the adhesive block.

[0176] Example 6, see Figures 22-24 ;

[0177] In this embodiment, the side heat sealing device 500 includes a rotary cylinder 510, a side pressure plate 530, a side pressure strip 540, a side heating strip 560, and a base 550.

[0178] The base 550 is fixed on the frame 100 and located on one side of the film conveying device 400;

[0179] The rotary cylinder 510 is fixed on the base 550;

[0180] The side pressure plate 530 is fixed to the end of the cylinder arm 520 of the rotary cylinder 510;

[0181] The side pressure strip 540 is fixed to the bottom of the side pressure plate 530;

[0182] The side heating strip 560 is located on one side of the film conveying device 400 and is fixed to the frame 100 by a mounting bracket;

[0183] The rotary cylinder 510 drives the cylinder arm 520 to rotate, which can press the side pressure bar 540 onto the side heating bar 560.

[0184] In this embodiment, the side heating strip 560 is a commercially available heating product that can be quickly heated by electricity; the side pressure strip 540 is a silicone pressure strip.

[0185] The working method of the side heat sealing device provided in this embodiment of the invention is as follows: After the adhesive block b, wrapped with film, stays at the designated heat sealing position, the film on both sides of the adhesive block b will fall on the side heating strips 560 on both sides. The rotary cylinder 510 drives the side pressure strip 540 to rotate and press the film on the surface of the side heating strip 560. The side heating strip 560 is quickly energized to heat, and the sealing operation of the film on both sides is completed.

[0186] Example 7, see Figures 16-21 ;

[0187] In this embodiment, the post-heat sealing device 600 includes:

[0188] The bracket, the cutter mounted on the bracket, the pressure drive located directly above the cutter, and two sets of heat sealers 630 fixed on the bracket and located on both sides of the cutter;

[0189] The downward driving component can press down onto the heat sealing component 630 and cooperate with the heat sealing component 630 to perform heat sealing operation; the cutting component can pass upward through the gap between the two sets of heat sealing components 630 to perform film cutting operation.

[0190] During the heat sealing operation, the downward driving component moves down and presses against the heat sealing component 630. In conjunction with the two sets of heat sealing components 630, the film sealing of the tail end of one rubber block and the film sealing of the front end of the next rubber block can be achieved in one heat sealing operation.

[0191] Meanwhile, as the downward-pressing drive moves down to cooperate with the heat-sealing component 630 for heat sealing, the cutting component moves up simultaneously to quickly cut the film between the two sets of heat-sealing components 630, ensuring production continuity and improving production efficiency.

[0192] In this embodiment, the bracket includes a vertical side plate 610 and a flat plate 611 fixed to the top of the vertical side plate 610; through holes 611a are distributed on the flat plate 611 along the length direction of the flat plate 611; two sets of heat seals 630 are provided on the flat plate 611 and located on both sides of the through holes 611a.

[0193] In this embodiment, the cutting component includes a cutting cylinder 641, a cutting base 643, and a cutting blade 642; wherein,

[0194] The cutting cylinder 641 is fixed on the bracket; it is equipped with a magnetic switch to detect the cutting signal of the cutter 642; specifically, the cutting cylinder 641 is a guide rod cylinder.

[0195] The cutter holder 643 is fixed to the end of the drive rod of the cutting cylinder 641;

[0196] The cutter 642 is fixed on the cutter holder 643;

[0197] The cutting cylinder 641 can drive the cutter 642 to move up and down through the through hole 611a to perform the film cutting operation.

[0198] In this embodiment, the pressing drive component includes a pressing cylinder 621, a pressure plate 622, and a pressure bar 623; wherein,

[0199] The pressing cylinder 621 is vertically positioned above the cutting blade; the pressing cylinder 621 is equipped with a magnetic switch for detecting the heat sealing completion signal;

[0200] The pressure plate 622 is fixed to the end of the drive rod of the pressing cylinder 621;

[0201] The pressure strip 623 is a silicone pressure strip; it includes two sets, and the two sets of pressure strips 623 are symmetrically fixed at the bottom of the pressure plate 622, and the positions of the two sets of pressure strips 623 correspond to the positions of the two sets of heat sealing parts 630.

[0202] During the heat sealing operation, the pressing cylinder 621 drives the pressure plate 622 and the pressure strip 623 to move down, so that the pressure strip 623 presses against the heat sealing component 630, and cooperates with the heat sealing component 630 to perform the film sealing heat sealing operation.

[0203] In this embodiment, the bottom of the pressure plate 622 is provided with two sets of symmetrically spaced guide pads 640 between the two sets of pressure strips 623; the gap between the two sets of guide pads 640 forms a knife groove, the width of which is slightly wider than the thickness of the cutter 642, and the cutter 642 is inserted into the knife groove to facilitate cutting the film.

[0204] In this embodiment, the blade of the cutter 642 is serrated; the serrated blade can ensure that the film is cut quickly.

[0205] In this embodiment, the heat-sealing component 630 is a heating strip; the heating strip is a commercially available heating product that can be quickly heated by electricity.

[0206] The specific operation method of the post-heat sealing device provided in this embodiment of the invention is as follows:

[0207] 1. The conveying device delivers the adhesive block to the film coating station. When the adhesive block is finished being coated and needs to be cut, the pressing cylinder 621 drives the pressure strip 623 to move down, so that the pressure strip 623 presses the film on the surface of the heat seal 630.

[0208] 2. The heating strip is quickly powered on to heat the film, completing the film sealing operation at the tail end of the previous adhesive block and the front end of the next adhesive block;

[0209] 3. During the heat sealing operation, the cutting cylinder 641 drives the cutter 642 to pass through the through hole 611a and insert into the gap between the two sets of guide pads 640 to complete the film cutting action.

[0210] The post-heat sealing device provided in this embodiment of the invention has the following beneficial effects: Through the cooperative design of the heat sealing component and the cutting component, the two do not interfere with each other during operation. The cutting operation can be carried out simultaneously during the heat sealing operation, which improves production efficiency. One heat sealing operation can handle the heat sealing work at two locations, further improving production efficiency.

[0211] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0212] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0213] It is understood that those skilled in the art can make equivalent substitutions or modifications to the technical solutions and concepts of this invention, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A heat-sealing device for coating adhesive blocks, characterized in that, include: frame; Two sets of unwinding devices are arranged vertically on the frame and are used to roll and support the film roll. Two sets of anti-inertia feeding devices are arranged vertically on the frame. These devices brake the unwinding device and recover excess film released from the film roll due to inertia. Each anti-inertia feeding device includes a brake and a rocker arm. The rocker arm includes a rocker arm bracket, optical axis I, optical axis II, guide rollers, and a rocker arm. The rocker arm bracket is fixed to the frame and includes two side plates; The rocker arm includes two sets, and the two sets of rocker arms are rotatably connected to two side plates by pins; The rocker arm includes a long arm and a short arm, which are connected at an angle; the long arm is positioned close to the brake component, and the short arm is positioned away from the brake component. The optical axis I is connected to two long arms at both ends; The two ends of the optical axis II are connected to two short arms; The guide roller is located above the rocker arm and connected to the two side plates; The feeding and conveying device, located between the two sets of unwinding devices, is used to center and convey the rubber block to the laminating station; The film-coating conveyor is located at the film-coating station, and the adhesive block is coated during the conveying process of the film-coating conveyor. The heat sealing device performs film heat sealing and film cutting operations on the coated adhesive block.

2. The adhesive block coating heat sealing equipment according to claim 1, characterized in that, The unwinding device includes two rollers, which are connected to the frame at intervals; wherein, the two rollers are the working positions for the film roll.

3. The adhesive block coating heat sealing equipment according to claim 2, characterized in that, The brake component can prevent the roller from rotating, thus preventing the film roll from continuing to feed due to inertia; The rocker arm is located in the film roll discharge direction and is used to recover excess film released by the film roll under inertia.

4. The adhesive block coating heat sealing equipment according to claim 3, characterized in that, The braking components include a brake bracket, a brake cylinder, and a push plate; wherein... The brake bracket is fixed to the frame; The brake cylinder is fixed on the brake bracket and located below the roller; The push plate is fixed to the end of the brake cylinder drive rod.

5. The adhesive block coating heat sealing equipment according to claim 1, characterized in that, The feeding and conveying device includes: The conveyor support includes two parallel side plate frames; Several powered rollers are connected at equal intervals to the two side plate frames; The centering assembly includes a guide frame and several rollers; The guide frame includes two sets, which are fixed symmetrically above the two side plate frames; The guide frame includes an inclined guide plate and a horizontal guide plate connected to each other, with the inclined guide plate located in the feeding direction and the horizontal guide plate located in the discharging direction; Several rollers are spaced apart on the guide frame, and each guide frame has two layers of rollers spaced apart. The inclined guide plate is tilted outward at its front end; the two horizontal guide plates are set parallel to each other.

6. The adhesive block coating heat sealing equipment according to claim 1, characterized in that, The film-coating conveying device includes a driving pulley, a driven pulley, a belt, a frame, multiple support rollers, and a motor; wherein, The driving pulley and driven pulley are rotatably connected to the frame; The belt is connected to the driving pulley and the driven pulley for transmission. The frame is fixed to the machine frame and located between the driving pulley and the driven pulley; Multiple support rollers are connected at intervals on the frame, and the upper roller surface of the support rollers is used to support the belt conveyor surface; The motor is fixed on the frame, and its main shaft is fixedly connected to the drive pulley.

7. The adhesive block coating heat sealing equipment according to claim 1, characterized in that, The heat sealing device includes two sets of side heat sealing devices located on both sides of the film conveying device, and a rear heat sealing device located at the feeding position of the film conveying device; The two sets of side heat sealing devices heat seal the films on both sides of the adhesive block, and the rear heat sealing device heat seals and cuts the film at the tail end of the adhesive block.

8. The adhesive block coating heat sealing equipment according to claim 7, characterized in that, The side heat sealing device includes a rotary cylinder, a side pressure plate, a side pressure strip, a side heating strip, and a base; The base is fixed to the frame and located on one side of the film conveying device; The rotary cylinder is fixed on the base; The side pressure plate is fixed to the end of the cylinder arm of the rotary cylinder; The side pressure strip is fixed to the bottom of the side pressure plate; The side heating strip is located on one side of the film-coating conveying device and is fixed to the frame by a mounting bracket; The rotary cylinder drives the cylinder arm to rotate, which causes the side pressure bar to press against the side heating bar.

9. The adhesive block coating heat sealing equipment according to claim 7, characterized in that, The post-heat sealing device includes a bracket, a cutter mounted on the bracket, a pressing drive located directly above the cutter, and two sets of heat sealing components fixed on the bracket and located on both sides of the cutter. Among them, the downward driving component can press down on the heat sealing component and cooperate with the heat sealing component to perform heat sealing operation; the cutting component can pass upward through the gap between the two sets of heat sealing components to perform film cutting operation. The bracket includes a vertical side plate and a flat plate fixed to the top of the vertical side plate; through holes are distributed along the length of the flat plate, and two sets of heat seals are provided on the flat plate and located on both sides of the through holes; The cutting component includes a cutting cylinder, a cutting base, and a cutting blade; The cutting cylinder is fixed on the bracket; The cutter holder is fixed to the end of the cutting cylinder drive rod; The cutter is fixed on the cutter holder; The cutting cylinder can drive the cutter to move up and down through the through hole; The pressing drive component includes a pressing cylinder, a pressure plate, and a pressure bar; The downward pressure cylinder is vertically positioned above the cutting blade. The pressure plate is fixed to the end of the downward pressure cylinder drive rod; The pressure strips include two sets, which are symmetrically fixed at the bottom of the pressure plate, and the positions of the two sets of pressure strips correspond to the positions of the two sets of heat sealing components.

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